Why you should use JavaScript, NodeJS & SQL Online Test?

The Test JavaScript, Nodejs et SQL makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects: Comprendre et implémenter la syntaxe JavaScript de base Utilisation efficace des fonctionnalités JavaScript ES6 Créer et manipuler des objets à l'aide de concepts javascript OOPS Travailler avec des API pour récupérer et traiter les données Gestion des opérations asynchrones dans Node.js en utilisant des promesses Comprendre et utiliser le système de module Node.js Comprendre le cycle de vie de demande de réponse dans Node.js Effectuer des opérations CRUD en SQL à l'aide de JavaScript Utiliser efficacement les jointures SQL et les index Appliquer des concepts de programmation JavaScript pour résoudre des problèmes

JavaScript, NodeJS & SQL Online Test

Q: What topics are covered in the JavaScript, NodeJS & SQL Online Test?

Bases JavaScript JS ES6 Js oups Manipulation des API Node asynchrone.js et promesses Système de module Node.js Demandez le cycle de vie de la réponse Opérations SQL Crud SQL JOINS ET INDEX Programmation JavaScript

About the test:

Le test JavaScript, NodeJS & SQL utilise des MCQ basés sur un scénario pour évaluer les candidats sur leur compétence dans le langage de programmation JavaScript, l'environnement d'exécution NodeJS et la base de données SQL. Le test évalue la compréhension des candidats des sujets tels que la programmation axée sur les événements, la programmation asynchrone, le middleware, les connexions de base de données, les requêtes SQL et les principes de conception de la base de données. Les candidats sont évalués sur leur capacité à utiliser JavaScript et NodeJS pour développer des applications côté serveur, interagir avec les bases de données, concevoir des schémas de base de données et écrire des requêtes SQL optimisées et sécurisées pour la manipulation et la récupération des données.

Covered skills:

Bases JavaScript
Js oups
Node asynchrone.js et promesses
Demandez le cycle de vie de la réponse
SQL JOINS ET INDEX

JS ES6
Manipulation des API
Système de module Node.js
Opérations SQL Crud
Programmation JavaScript

Try practice test

Start 14-day free trial

9 reasons why

Adaface JavaScript, NodeJS & SQL Test is the most accurate way to shortlist Développeur complets

Reason #1

Tests for on-the-job skills

The JavaScript, NodeJS & SQL Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

Compétent dans les bases JavaScript
Solide compréhension des concepts JS ES6
Capacité à appliquer les principes JavaScript OOPS
Expérience dans la gestion des API en JavaScript
Familiarité avec la programmation asynchrone dans Node.js et promesses
Connaissance approfondie du système de module Node.js
Compréhension du cycle de vie de la réponse de la demande dans Node.js
Compétence dans les opérations SQL Crud
Compétence dans les jointures SQL et les index
Compétences de programmation JavaScript fortes
Erreur efficace et gestion des exceptions
Expérience avec le contrôle de la version git

Reason #2

No trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

View sample questions

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface

Try practice test

Start 14-day free trial

Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

Ce ne sont qu'un petit échantillon de notre bibliothèque de plus de 10 000 questions. Les questions réelles à ce sujet Test JavaScript, Nodejs et SQL ne sera pas googleable.

🧐 Question
Medium Async Await Promises Promises Async-Await	Try practice test
What will the following code output? A: 24 after 5 seconds and after another 5 seconds, another 24 B: 24 followed by another 24 immediately C: 24 immediately and another 24 after 5 seconds D: After 5 seconds, 24 and 24 E: Undefined F: NaN G: None of these
Medium Bitcoin prices Axios Promises	Try practice test
Review the following JavaScript code and pick the correct options: Assume that the API returns a successful 200 response code and a JSON object as the response body. What would the value of ‘a’ be after the code is executed?
Medium My Module Scope	Try practice test
What will the output of the following JavaScript code be?
Medium Promise Resolve Promises Async-Await	Try practice test
What does the following code output?
Easy Throw, Try, Async Promises Async-Await	Try practice test
What does the following JS code output?
Medium I/O cycle and main module Event Loop	Try practice test
Review the following NodeJS code: Pick the correct statements: A: X will be logged after Y always B: Y will be logged after X always C: The order of executing timeout and immediate callbacks is non-deterministic and is bound by the performance of the process D: In this case, the function calls are scheduled in the main module and not in the I/O cycle E: In this case, the function calls are scheduled in the I/O cycle so setImmediate is always executed before any timers scheduled in the I/O phase, independently of how many timers are left
Easy Res methods	Try practice test
If none of the methods (res.download, res.end, res.json, res.jsonp, res.redirect, res.render, res.send, res.sendFile, res.sendStatus) are called from a route handler to terminate request response cycle, what happens to the the client request? A) Will be left hanging indefinitely B) Will get an internal server error - 500 C) Will get a service unavailable error - 503 D) Will be left hanging for a while and then request timeout error - 408
Medium Phases and Timers Event Loop	Try practice test
Review the following NodeJS code: Pick the correct statements: A: Adaface will be logged after Lovelace. B: Lovelace will be logged after Adaface. C: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback which takes 10 seconds. Only after this is finished, the event loop will execute the timers that are finished. So the timeout call back will actually be executed after 205 ms even though it is scheduled to be run after 200 ms D: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback. While executing the callback, the scheduled timer becomes ready to be executed. So the runtime executes the timer and then completes processing the callback.
Medium Multi Select JOIN GROUP BY	Try practice test
Consider the following SQL table: How many rows does the following SQL query return?
Medium nth highest sales Nested queries User Defined Functions	Try practice test
Consider the following SQL table: Which of the following SQL commands will find the ‘nth highest Sales’ if it exists (returns null otherwise)?
Medium Select & IN Nested queries	Try practice test
Consider the following SQL table: Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
Medium Sorting Ubers Nested queries Join Comparison operators	Try practice test
Consider the following SQL table: What will be the first two tuples resulting from the following SQL command?
Hard With, AVG & SUM MAX() MIN() Aggregate functions	Try practice test
Consider the following SQL table: How many tuples does the following query return?
Easy Registration Queue Logic Queues	Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount. For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition. ⚠️⚠️⚠️ Note: - The first line of the input is the length of the array. The second line contains all the elements of the array. - The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function. - You need to "print" the final result (not return it) to pass the test cases. For the example discussed above, the input will be: 5 20 70 -40 30 -10 Your code needs to print the following to the standard output: 20 70 30 -40 -10
Medium Visitors Count Strings Logic	Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. Example: Input: WWMMWWCCC Expected Output: 4W3C2M Explanation: ‘W’ has the highest count, then ‘C’, then ‘M’. ⚠️⚠️⚠️ Note: - The input is already parsed and passed to a function. - You need to "print" the final result (not return it) to pass the test cases. - If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’. - If any of them have the same count, the output should follow this order - M, W, C.

	🧐 Question	🔧 Skill
	Medium Async Await Promises Promises Async-Await	2 mins JavaScript	Try practice test
What will the following code output? A: 24 after 5 seconds and after another 5 seconds, another 24 B: 24 followed by another 24 immediately C: 24 immediately and another 24 after 5 seconds D: After 5 seconds, 24 and 24 E: Undefined F: NaN G: None of these
	Medium Bitcoin prices Axios Promises	2 mins JavaScript	Try practice test
Review the following JavaScript code and pick the correct options: Assume that the API returns a successful 200 response code and a JSON object as the response body. What would the value of ‘a’ be after the code is executed?
	Medium My Module Scope	2 mins JavaScript	Try practice test
What will the output of the following JavaScript code be?
	Medium Promise Resolve Promises Async-Await	2 mins JavaScript	Try practice test
What does the following code output?
	Easy Throw, Try, Async Promises Async-Await	2 mins JavaScript	Try practice test
What does the following JS code output?
	Medium I/O cycle and main module Event Loop	2 mins NodeJS	Try practice test
Review the following NodeJS code: Pick the correct statements: A: X will be logged after Y always B: Y will be logged after X always C: The order of executing timeout and immediate callbacks is non-deterministic and is bound by the performance of the process D: In this case, the function calls are scheduled in the main module and not in the I/O cycle E: In this case, the function calls are scheduled in the I/O cycle so setImmediate is always executed before any timers scheduled in the I/O phase, independently of how many timers are left
	Easy Res methods	3 mins NodeJS	Try practice test
If none of the methods (res.download, res.end, res.json, res.jsonp, res.redirect, res.render, res.send, res.sendFile, res.sendStatus) are called from a route handler to terminate request response cycle, what happens to the the client request? A) Will be left hanging indefinitely B) Will get an internal server error - 500 C) Will get a service unavailable error - 503 D) Will be left hanging for a while and then request timeout error - 408
	Medium Phases and Timers Event Loop	2 mins NodeJS	Try practice test
Review the following NodeJS code: Pick the correct statements: A: Adaface will be logged after Lovelace. B: Lovelace will be logged after Adaface. C: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback which takes 10 seconds. Only after this is finished, the event loop will execute the timers that are finished. So the timeout call back will actually be executed after 205 ms even though it is scheduled to be run after 200 ms D: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback. While executing the callback, the scheduled timer becomes ready to be executed. So the runtime executes the timer and then completes processing the callback.
	Medium Multi Select JOIN GROUP BY	2 mins SQL	Try practice test
Consider the following SQL table: How many rows does the following SQL query return?
	Medium nth highest sales Nested queries User Defined Functions	3 mins SQL	Try practice test
Consider the following SQL table: Which of the following SQL commands will find the ‘nth highest Sales’ if it exists (returns null otherwise)?
	Medium Select & IN Nested queries	3 mins SQL	Try practice test
Consider the following SQL table: Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
	Medium Sorting Ubers Nested queries Join Comparison operators	3 mins SQL	Try practice test
Consider the following SQL table: What will be the first two tuples resulting from the following SQL command?
	Hard With, AVG & SUM MAX() MIN() Aggregate functions	2 mins SQL	Try practice test
Consider the following SQL table: How many tuples does the following query return?
	Easy Registration Queue Logic Queues	30 mins Coding	Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount. For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition. ⚠️⚠️⚠️ Note: - The first line of the input is the length of the array. The second line contains all the elements of the array. - The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function. - You need to "print" the final result (not return it) to pass the test cases. For the example discussed above, the input will be: 5 20 70 -40 30 -10 Your code needs to print the following to the standard output: 20 70 30 -40 -10
	Medium Visitors Count Strings Logic	30 mins Coding	Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. Example: Input: WWMMWWCCC Expected Output: 4W3C2M Explanation: ‘W’ has the highest count, then ‘C’, then ‘M’. ⚠️⚠️⚠️ Note: - The input is already parsed and passed to a function. - You need to "print" the final result (not return it) to pass the test cases. - If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’. - If any of them have the same count, the output should follow this order - M, W, C.

	🧐 Question	🔧 Skill	💪 Difficulty	⌛ Time
	Async Await Promises Promises Async-Await	JavaScript	Medium	2 mins	Try practice test
What will the following code output? A: 24 after 5 seconds and after another 5 seconds, another 24 B: 24 followed by another 24 immediately C: 24 immediately and another 24 after 5 seconds D: After 5 seconds, 24 and 24 E: Undefined F: NaN G: None of these
	Bitcoin prices Axios Promises	JavaScript	Medium	2 mins	Try practice test
Review the following JavaScript code and pick the correct options: Assume that the API returns a successful 200 response code and a JSON object as the response body. What would the value of ‘a’ be after the code is executed?
	My Module Scope	JavaScript	Medium	2 mins	Try practice test
What will the output of the following JavaScript code be?
	Promise Resolve Promises Async-Await	JavaScript	Medium	2 mins	Try practice test
What does the following code output?
	Throw, Try, Async Promises Async-Await	JavaScript	Easy	2 mins	Try practice test
What does the following JS code output?
	I/O cycle and main module Event Loop	NodeJS	Medium	2 mins	Try practice test
Review the following NodeJS code: Pick the correct statements: A: X will be logged after Y always B: Y will be logged after X always C: The order of executing timeout and immediate callbacks is non-deterministic and is bound by the performance of the process D: In this case, the function calls are scheduled in the main module and not in the I/O cycle E: In this case, the function calls are scheduled in the I/O cycle so setImmediate is always executed before any timers scheduled in the I/O phase, independently of how many timers are left
	Res methods	NodeJS	Easy	3 mins	Try practice test
If none of the methods (res.download, res.end, res.json, res.jsonp, res.redirect, res.render, res.send, res.sendFile, res.sendStatus) are called from a route handler to terminate request response cycle, what happens to the the client request? A) Will be left hanging indefinitely B) Will get an internal server error - 500 C) Will get a service unavailable error - 503 D) Will be left hanging for a while and then request timeout error - 408
	Phases and Timers Event Loop	NodeJS	Medium	2 mins	Try practice test
Review the following NodeJS code: Pick the correct statements: A: Adaface will be logged after Lovelace. B: Lovelace will be logged after Adaface. C: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback which takes 10 seconds. Only after this is finished, the event loop will execute the timers that are finished. So the timeout call back will actually be executed after 205 ms even though it is scheduled to be run after 200 ms D: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback. While executing the callback, the scheduled timer becomes ready to be executed. So the runtime executes the timer and then completes processing the callback.
	Multi Select JOIN GROUP BY	SQL	Medium	2 mins	Try practice test
Consider the following SQL table: How many rows does the following SQL query return?
	nth highest sales Nested queries User Defined Functions	SQL	Medium	3 mins	Try practice test
Consider the following SQL table: Which of the following SQL commands will find the ‘nth highest Sales’ if it exists (returns null otherwise)?
	Select & IN Nested queries	SQL	Medium	3 mins	Try practice test
Consider the following SQL table: Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
	Sorting Ubers Nested queries Join Comparison operators	SQL	Medium	3 mins	Try practice test
Consider the following SQL table: What will be the first two tuples resulting from the following SQL command?
	With, AVG & SUM MAX() MIN() Aggregate functions	SQL	Hard	2 mins	Try practice test
Consider the following SQL table: How many tuples does the following query return?
	Registration Queue Logic Queues	Coding	Easy	30 mins	Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount. For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition. ⚠️⚠️⚠️ Note: - The first line of the input is the length of the array. The second line contains all the elements of the array. - The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function. - You need to "print" the final result (not return it) to pass the test cases. For the example discussed above, the input will be: 5 20 70 -40 30 -10 Your code needs to print the following to the standard output: 20 70 30 -40 -10
	Visitors Count Strings Logic	Coding	Medium	30 mins	Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. Example: Input: WWMMWWCCC Expected Output: 4W3C2M Explanation: ‘W’ has the highest count, then ‘C’, then ‘M’. ⚠️⚠️⚠️ Note: - The input is already parsed and passed to a function. - You need to "print" the final result (not return it) to pass the test cases. - If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’. - If any of them have the same count, the output should follow this order - M, W, C.

Reason #4

1200+ customers in 75 countries

Avec Adaface, nous avons pu optimiser notre processus de sélection initiale de plus de 75 %, libérant ainsi un temps précieux tant pour les responsables du recrutement que pour notre équipe d'acquisition de talents !

Brandon Lee, Chef du personnel, Love, Bonito

Try practice test

Start 14-day free trial

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment Test JavaScript, Nodejs et SQL in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Science behind Adaface tests

Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the Test JavaScript, Nodejs et SQL from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

Reason #7

Detailed scorecards & benchmarks

Voir l'échantillon

Try practice test

Start 14-day free trial

Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

Reason #9

Advanced Proctoring

Learn more

Preview this test

Voir l'échantillon

About the JavaScript, NodeJS & SQL Assessment Test

Why you should use Pre-employment JavaScript, NodeJS & SQL Online Test?

The Test JavaScript, Nodejs et SQL makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

Comprendre et implémenter la syntaxe JavaScript de base
Utilisation efficace des fonctionnalités JavaScript ES6
Créer et manipuler des objets à l'aide de concepts javascript OOPS
Travailler avec des API pour récupérer et traiter les données
Gestion des opérations asynchrones dans Node.js en utilisant des promesses
Comprendre et utiliser le système de module Node.js
Comprendre le cycle de vie de demande de réponse dans Node.js
Effectuer des opérations CRUD en SQL à l'aide de JavaScript
Utiliser efficacement les jointures SQL et les index
Appliquer des concepts de programmation JavaScript pour résoudre des problèmes

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the JavaScript, NodeJS & SQL Online Test?

js es6
js es6 se concentre sur les nouvelles fonctionnalités et améliorations introduites dans ECMascript 6, la dernière version de JavaScript. Il comprend des concepts tels que les fonctions flèches, les littéraux de modèle, la destructeur, les classes, les modules et les promesses. Cette compétence est mesurée dans le test pour évaluer la familiarité du candidat avec les fonctionnalités modernes du langage JavaScript et leur capacité à écrire du code efficace et maintenable.
js oops
js oops (programmation orientée objet (programmation d'objets ) implique d'organiser le code en objets réutilisables et d'utiliser l'héritage, l'encapsulation et le polymorphisme. Il permet une meilleure organisation de code, modularité et réutilisabilité. Cette compétence est mesurée dans le test pour évaluer la compétence du candidat dans la rédaction du code JavaScript orienté objet et leur compréhension des principes OOP.
Gestion des API
Les API de gestion impliquent la récupération des données à partir du Web externe API et l'intégration dans les applications JavaScript. Il nécessite une connaissance des demandes HTTP, de l'analyse JSON et de la gestion des opérations asynchrones. Cette compétence est mesurée dans le test pour évaluer la capacité du candidat à travailler avec des API Web et à consommer des données externes dans les applications JavaScript.
Node asynchrone.js et promesses
Node asynchrone.js et et promesses Les promesses se concentrent sur la nature asynchrone de Node.js et l'utilisation de promesses pour gérer les opérations asynchrones. Il comprend des concepts tels que des rappels, une programmation pilotée par des événements, une asynchronisation / attente et une gestion des erreurs. Cette compétence est mesurée dans le test pour évaluer la compréhension du candidat de la programmation asynchrone dans Node.js et sa capacité à écrire du code asynchrone efficace et évolutif.
Node.js Système du module
Le système de module .js couvre l'organisation et les modules réutilisables dans les applications Node.js. Il comprend des concepts tels que l'importation et l'exportation de modules, l'utilisation de modules de base, la création de modules personnalisés et la résolution des modules. Cette compétence est mesurée dans le test pour évaluer la familiarité du candidat avec le système de modules dans Node.js et sa capacité à créer et à utiliser efficacement les modules dans les projets Node.js.
Demander le cycle de vie de la réponse </h4> < P> Demandez le cycle de vie de la réponse consiste à comprendre comment fonctionne la communication client-serveur dans le contexte des applications Web. Il comprend des concepts tels que les méthodes HTTP, les en-têtes de demande, la manipulation des itinéraires, le middleware et la gestion des réponses. Cette compétence est mesurée dans le test pour évaluer la compréhension du candidat du flux de demande-réponse dans les applications Web et sa capacité à gérer efficacement les demandes et les réponses HTTP. </p> <h4> Opérations CRUD SQL
SQL Les opérations CRUD se réfèrent aux opérations de création, de lecture, de mise à jour et de suppression effectuée sur la base de données à l'aide du langage de requête structuré (SQL). Il inclut des concepts tels que l'insertion de données, l'interrogation de données, la mise à jour des données et la suppression des données des bases de données relationnelles. Cette compétence est mesurée dans le test pour évaluer la compétence du candidat en SQL et leur capacité à effectuer des opérations de base de base de données à l'aide de SQL.
SQL Jointes and Index </H4> <p> Les jointures SQL impliquent de travailler avec Bases de données relationnelles et comprendre comment rejoindre les tables et optimiser les performances de la base de données à l'aide d'index. Il comprend des concepts tels que la jointure intérieure, la jointure extérieure, la jointure croisée, les clés primaires, les clés étrangères et la création d'index. Cette compétence est mesurée dans le test pour évaluer la capacité du candidat à rédiger des requêtes complexes impliquant des jointures et leur connaissance de l'optimisation des requêtes de base de données en utilisant des index. </p> <h4> JavaScript Programming
La programmation JavaScript couvre la capacité globale de la capacité globale des candidats pour écrire le code JavaScript propre, efficace et bien structuré. Il évalue leurs connaissances sur les meilleures pratiques, les conventions de codage, la gestion des erreurs, les performances du code et les compétences de dépannage. Cette compétence est mesurée dans le test pour évaluer la compétence globale du candidat dans la programmation JavaScript et leur capacité à résoudre des problèmes de programmation en utilisant JavaScript.
Full list of covered topics
The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for Test JavaScript, Nodejs et SQL to be based on.
Types de données
Les opérateurs
Les fonctions
Tableaux
Objets
Cordes
Conditionnels
Boucles
Fermetures
Prototypes
Fonctions flèches
Destructeur
Opérateur de repos / écart
Promesses
Asynchrone / attendre
Modules
Programmation axée sur des événements
Tampons et ruisseaux
Système de fichiers
Module HTTP
Cadre express
Gestion des erreurs middleware
Routage
Opérations de crud avec SQL
Langage de manipulation des données
Langue de définition des données
Transactions
Index
Se joindre à
Normalisation
Fonctions agrégées
Jointure interne
Joint gauche
À droite
Jointure extérieure complète
Rappels
La gestion des erreurs
Gestion des exceptions
Débogage
Essai
Expressions régulières
Gestion de la mémoire
Variables
Portées
Rappels
Gestion des événements
Héritage basé sur un prototype
Propagation d'erreur
Programmation asynchrone
Flux de données unidirectionnel
Données immuables
Liaison des données
Injection de dépendance
Opérations de l'API crud
Promesse de chaînage
Gestion des erreurs avec les promesses
Eslint
Scripts NPM
Commandes GIT
Des demandes de traction

Try practice test

Start 14-day free trial

What roles can I use the JavaScript, NodeJS & SQL Online Test for?

Développeur complet
Développeur JavaScript
Développeur Node.js
Développeur SQL

How is the JavaScript, NodeJS & SQL Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

Implémentation de structures de données JavaScript et d'algorithmes
Optimisation du code JavaScript pour les performances
Créer et maintenir des API RESTFULES dans Node.js
Implémentation d'authentification et d'autorisation dans les applications Node.js
Comprendre et travailler avec les bases de données NoSQL dans Node.js
Utilisation de frameworks et de bibliothèques JavaScript (par exemple, express, réagir) pour développer des applications Web
Implémentation de développement axé sur les tests (TDD) et d'écriture de tests unitaires pour le code JavaScript
Débogage et dépannage des applications JavaScript
Utilisation de mécanismes de mise en cache et optimisation des requêtes de base de données dans Node.js
Implémentation de rendu côté serveur (SSR) à l'aide de frameworks Node.js

The coding question for experienced candidates will be of a higher difficulty level to evaluate more hands-on experience.

Preview this test

Voir l'échantillon

Les responsables du recrutement ont estimé que grâce aux questions techniques qu'ils ont posées lors des entretiens avec le panel, ils étaient en mesure de déterminer quels candidats avaient obtenu de meilleurs scores et de se différencier de ceux qui avaient obtenu de moins bons résultats. Ils sont très satisfait avec la qualité des candidats présélectionnés lors de la sélection Adaface.

85%

réduction du temps de dépistage

Voir l'étude de cas complète

JavaScript, NodeJS & SQL Hiring Test FAQ

Puis-je combiner plusieurs compétences en une seule évaluation personnalisée?

Oui absolument. Les évaluations personnalisées sont configurées en fonction de votre description de poste et comprendront des questions sur toutes les compétences indispensables que vous spécifiez.

Avez-vous en place des fonctionnalités anti-chétion ou de proctorisation?

Nous avons les fonctionnalités anti-modification suivantes en place:

Questions non googléables
IP Proctoring
Proctoring Web
Proctoring webcam
Détection du plagiat
navigateur sécurisé

En savoir plus sur les fonctionnalités de Proctoring.

Comment interpréter les résultats des tests?

La principale chose à garder à l'esprit est qu'une évaluation est un outil d'élimination, pas un outil de sélection. Une évaluation des compétences est optimisée pour vous aider à éliminer les candidats qui ne sont pas techniquement qualifiés pour le rôle, il n'est pas optimisé pour vous aider à trouver le meilleur candidat pour le rôle. Ainsi, la façon idéale d'utiliser une évaluation consiste à décider d'un score de seuil (généralement 55%, nous vous aidons à bencher) et à inviter tous les candidats qui marquent au-dessus du seuil pour les prochains cycles d'entrevue.

Pour quel niveau d'expérience puis-je utiliser ce test?

Chaque évaluation ADAFACE est personnalisée à votre description de poste / Persona de candidats idéaux (nos experts en la matière choisiront les bonnes questions pour votre évaluation de notre bibliothèque de 10000+ questions). Cette évaluation peut être personnalisée pour tout niveau d'expérience.

Chaque candidat reçoit-il les mêmes questions?

Oui, cela vous permet de comparer les candidats. Les options pour les questions du MCQ et l'ordre des questions sont randomisées. Nous avons Anti-Cheating / Proctoring en place. Dans notre plan d'entreprise, nous avons également la possibilité de créer plusieurs versions de la même évaluation avec des questions de niveaux de difficulté similaires.

Je suis candidat. Puis-je essayer un test de pratique?

Non. Malheureusement, nous ne soutenons pas les tests de pratique pour le moment. Cependant, vous pouvez utiliser nos exemples de questions pour la pratique.